docker/docker — pull request #9086 by vbatts (2014-11-11 13:53:08+00:00)
Title: pkg/tarsum: adding more tests

Ensuring case size of headers will still be accounted for.
https://github.com/docker/docker/pull/8869#discussion_r20114401

ping @jlhawn and @ewindisch

Signed-off-by: Vincent Batts